next(1,2).
next(2,3).
next(3,4).
next(4,5).
next(5,6).
next(6,7).
next(7,8).
next(8,9).
next(9,10).
next(10,11).
next(11,12).
next(12,13).
next(13,14).
next(14,15).
next(15,16).
next(16,17).
next(14,18).
next(18,19).
next(19,20).
next(20,21).
next(21,22).
next(22,23).
next(19,24).
next(24,25).
next(25,26).
next(26,27).
next(5,28).
next(28,29).
next(29,30).
next(30,31).
next(31,32).
next(32,33).
next(33,34).
next(34,35).
next(35,36).
next(36,37).
next(37,38).
next(38,39).
next(39,40).
next(40,41).
next(41,42).
next(42,43).
next(40,44).
next(44,45).
next(45,46).
next(46,47).
next(47,48).
next(48,49).
next(45,50).
next(50,51).
next(51,52).
next(52,53).
next(29,54).
next(54,55).
next(55,56).
next(56,57).
next(57,58).
next(58,59).
next(59,60).
next(60,61).
next(61,62).
next(62,63).
next(63,64).
next(64,65).
next(65,66).
next(66,67).
next(67,68).
next(68,69).
next(69,70).
next(67,71).
next(71,72).
next(72,73).
next(73,74).
next(74,75).
next(75,76).
next(72,77).
next(77,78).
next(78,79).
next(79,80).
doAt(startflow,4).
doAt(a1,5).
doAt(a5,7).
doAt(a12,8).
doAt(a4,9).
doAt(a21,10).
doAt(a16,11).
doAt(a23,12).
doAt(a18,13).
doAt(a3,14).
doAt(a8,15).
doAt(endflow,16).
doAt(a13,18).
doAt(a20,19).
doAt(a14,20).
doAt(a9,21).
doAt(endflow,22).
doAt(a22,24).
doAt(a9,25).
doAt(endflow,26).
doAt(a6,28).
doAt(a19,29).
doAt(a15,30).
doAt(a24,31).
doAt(a10,32).
doAt(a4,33).
doAt(a21,35).
doAt(a16,36).
doAt(a23,37).
doAt(a18,39).
doAt(a3,40).
doAt(a8,41).
doAt(endflow,42).
doAt(a13,44).
doAt(a20,45).
doAt(a14,46).
doAt(a9,47).
doAt(endflow,48).
doAt(a22,50).
doAt(a9,51).
doAt(endflow,52).
doAt(a2,55).
doAt(a17,56).
doAt(a11,57).
doAt(a7,58).
doAt(a24,59).
doAt(a10,60).
doAt(a4,61).
doAt(a21,63).
doAt(a16,64).
doAt(a23,65).
doAt(a18,66).
doAt(a3,67).
doAt(a8,68).
doAt(endflow,69).
doAt(a13,71).
doAt(a20,72).
doAt(a14,73).
doAt(a9,74).
doAt(endflow,75).
doAt(a22,77).
doAt(a9,78).
doAt(endflow,79).
compAt(a5,x6,6).
compAt(a5,x2,34).
compAt(a5,x6,38).
compAt(a5,x6,54).
compAt(a5,x2,62).
leftrightnexts(20,24).
leftrightnexts(15,18).
leftrightnexts(46,50).
leftrightnexts(41,44).
leftrightnexts(73,77).
leftrightnexts(68,71).
leftrightnexts(30,54).
leftrightnexts(6,28).